The Vintage Military Railroad Field Telephone Monophone is a rare and unique collectible piece from the United States during the 1940-69 era. Produced by the brand GTE, this telephone was designed specifically for military use in field settings. Its monophone function allows for communication over a single channel, making it a valuable piece of history for collectors of vintage telephones and military memorabilia. This item offers a glimpse into the past and serves as a reminder of the technological advancements of the time.    Crank turns, bells rings. Looks like it may have been used on a bridge crew at one point etched inside the cover is Bridge Force, 1406, Richmond and the date 3-8-78. Please see photos for condition. Selling untested as is. No returns.